28285159336513 has 2 divisors, whose sum is σ = 28285159336514. Its totient is φ = 28285159336512.

The previous prime is 28285159336481. The next prime is 28285159336571. The reversal of 28285159336513 is 31563395158282.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19098149840449 + 9187009496064 = 4370143^2 + 3031008^2 .

It is a cyclic number.

It is not a de Polignac number, because 28285159336513 - 2⁵ = 28285159336481 is a prime.

It is not a weakly prime, because it can be changed into another prime (28285159336573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14142579668256 + 14142579668257.

It is an arithmetic number, because the mean of its divisors is an integer number (14142579668257).

Almost surely, 2^{28285159336513} is an apocalyptic number.

It is an amenable number.

28285159336513 is a deficient number, since it is larger than the sum of its proper divisors (1).

28285159336513 is an equidigital number, since it uses as much as digits as its factorization.

28285159336513 is an evil number, because the sum of its binary digits is even.

The product of its digits is 46656000, while the sum is 61.

The spelling of 28285159336513 in words is "twenty-eight trillion, two hundred eighty-five billion, one hundred fifty-nine million, three hundred thirty-six thousand, five hundred thirteen".